Drain



M. A. M CUE DRAIN VALVE Jan. 3, 1928. Re. 16,844

Original Filed Sept. 26, 1925 AnoRNi-ws Reiaued Jan. 3, 1928.

IABTIN ALOYSIUS MOGUE, LONG BRANCH, NEW JERSEY.

DRAIN VALVE.

Original 110. 1,591,859, dated July 6, 1926, Serial No. 58,857, filed September 26, 1925. Application for reissue filed lune 15, 1927. Serial No. 199,394.

This invention relates to drain valves in agneraland in its specific application as s own lit-the drawings it is particularly intendedand adapted totake the place of the t conyntional screw plug common to the crankcase of an internal combustion engine.

It will be appreciated that the frequent removal and replacement of an ordinary screw plug: from the bottom of a crankcase for the in purpose of draining the oil is at best an ary ;duous task, by. reason of the drain opening being not easy of access due to its location in the lowest portion of the crank-case, and also by reason of it being particularly difiicult to reengage the screw threads Whilst lying in an awkward position underneath is o engine in an endeavor to reinsert an ordinary plug in the opening.

with the resent invention as illustrated 90 in the drawings, there is provided an imhired roved screw plug that remains permanently in the opening, said plug being equipped with a valve that may be manually 0 I rated to an open or a clos position and t at is of such construction as to permit of this being readily accomplished from a distance by the use of a rod, hook, or the like. One of the objects of the present invention is to provide an improved device for the ao purpose described that is of such form and a structure as not to substantially exceed the general overall dimensions of the screw. plug now m use. v

A further object is to provide a highly eflicient and easily operated device in the nature of a drain plug, that is not open to the objections of a common screw plug as above set forth.

Various other objects and advantages of the invention will be in part obvious from an inspection of the accompanying drawings and a careful consideration of the following particular description and claims of one form of mechanism embodying my invention. Figure 1 is a sectional view of a portion of a crank-case with the drain valve of the present invention employed in the drain opening at the bottom of said crank case.

Fig. 2 is a side elevation of the drain valve detached with the valve lever shown in section, the section being taken on the line 2-2 of Fig. 3. I

Fig.v 3 is a central vertical sectional view through the drain valve with the valve memher and its lever shown in elevation.

Referring now more particularl to the several views of the drawing, it wil be apparent that there. is conventionally shown a crank case 10, the bottom section of which is provided with screw-threaded drain open mg '11 in which is employed the drain valve 12 of the present invention. The said drain valve includes an element 13 in the nature of a plug having a screw-threaded 14 and a portion 15. The portion 14 iscapable of being threaded into the opening 11, and this is accom lished by the use of-asuitable tool applies tothe portion 15 which is in the naturev of a nut in that the same is provided with-fiats16. The element 13 has a passage 17 extending therethrough, and

the said passage is controlled by a valve means presently to be described. The said valve means includes a beveled seat 18 at the lower end of the passage .17. valve member 19 is employed which isv arranged for movement into and out of contactwith the seat 18. frustro-conical shape to conform to the shape of the seat 18 and thus closely fit the same. The valve membe'r 19 isprovided with a stem 20 which extends through a spider 21 and has sliding movement with respect thereto as well asv turning movement. The upper end of the stem 20 is screw-threaded as at 22 to accommodate a nut 23. A spiral spring 24 surrounds a portion of the .stem 20 and one end of the spring 24 isin contact withvthe nut 23 and the opposite end of said spring is in contact with the central bearing portion or spider 21, as shown most clearly 1n Fig. 3. The portion 15 of the element 13 is provided jwith a 'cam face 25 which may be inclined to any suitable degree transecting a horizontal plane and will he in the form of an arc of a circle. A lever 26 is employed by having one end thereof attached as at 27 to the valve member 19 with its opposite end extending beyond the portion 15 with a. hole 28 in the free extremity thereof. It is to be noted that a portion of the lever 26 is in contact with the cam face 25 and this is true because of the action of the spring 24 which is of the extensible type. The spring 24 not only maintains a portion of the lever 26 in contact with the cam face 25 but also yieldingly maintains the valve member 19 in contact with the seat 18 to normally close the passage 17. It is further to be noted The said valve member is of UNITED STATES. PATENT OFFICE.

ortion v (if the' stem 20 aka its valve me'mber 19. It follows, therefore, 1211a; by imparting a tot e varalso permit all tom 26 bythe use a hook, or the like,

which-hook may be engaged in the hohi 28,1 7 a portion of the lever will be cammed downmd ly snd-las amalt-111m valve member will be moved downwardly ofl'or uiit'of eon 10 tion oft tact with the seat 18 to permit any portion of the" fli"uid,'such as oil, in the lower-secv llef'erank'c'ase to drain out through thef'piisage 171' B "movingfhelever 26*i'n amoppoeite direetfiffromthafl jest tione'd she'valvpmbeeie s be returned in eentswwimuhe m ie-mcloss the pasis a! ratively simple construe as, the 13 described, the valve in of" an 1 engine its-jentifety may be so emplqved as to be iriyxih'ierable fibr s "flyingf objects or from v Y encountering obstructionfs for"eXamQIeQVhe'nthe'eranlr case to whichthe amnesia is applied forms. a parti'an automobile en "me, since there will mete a y parts whi jat downwardand that the portion 15, aside from serving for' applying the element 13511 a:

drain opening, serves. for protecting parts of the valvejmeans. v I Having thus described myflinvention, I inhibit- V p 1;" The comhilnation with the case )7 ving' an opening therein, ,of

a barre l shaped screw-threaded body portion secui'ed into said opening means of said screw threads and having *a longitudinal ssage extending"therethrongh,f a normal closed manual operable valve. meansf iSPOSBdjWlthiXlfifild passage, a ral n levelj for said valve means,

a cam? rmed" on said body portion my co-a'c't with said' lever, to open said valve means; r I

In), drai'nvalve, the combinatione'of a cylindrical body portion in the form of a I rovi'ded-witheln "tudmahpasagramme means l secnre' said body portion into an opening, a valve seat portion, a valve member to coact with said seat, a concavity proa cam on said body portion, a spring means to normally maintain said valve member onthe seat so as-to close said'pza sage, and mamwlly operable lever means normally resting in said concavity and adapted'to actuate said valve member into an open position by coaction with said cam.

3;. ,In admin valve, the combination of a barrel shaped body portion having an axial passage extending therethrough and adapted to be secured into an opening, a laterall? extending portion adapted to prevent said body from passing through the opening, a valve seat formed on said body'- portien, a valve member coaeting withsaid seat and adapted'to normally be maintained thefeagainst, a cam having an arcnate face formed oil-said laterally extending portiony and, a laterally extending lever means on said valve member adapted to be manually actuated against said face so as to move said. valve from its seat.

4. A drain valve comprising an element in the nature of a screw plug, said element 7 having a passage extending thereth-rou-gh, a seat embodied by said element at the lower end of saidlpassage, a valve member sup ported for movement into and out of engagement With said seat to control said pas sage, a cam face embodied said element, a everrcon'nected to the valve member, a portion of said lever adapted to traverse said camface, and means for movably maintaining said portionof said lever in contact with said cam face, said portion of said lever'traversing said cam face in the movement of said lever to move the valve memher into and out of engagement with said seat to control said passage.

Signed at Long Branch, in the county of Monmouth and State of New Jersey,'this 6th day of June, A. D. 1927'. I

MARTIN A, 

